Invasion
Invasion Description
1st record: OR/Cathlamet Bay (1979, Verner 1981; USNM 58806, US Museum of Natural History 2007). Sytsma et al. (2004) treat this species as cryptogenic.
Geographic Extent
OR/Cathlamet Bay (1979, Verner 1981; USNM 58806, US Museum of Natural History 2007)
Vectors
| Level | Vector |
|---|---|
| Alternate | Fisheries Accidental (not Oyster) |
| Alternate | Aquatic Plant Shipments |
| Alternate | Ballast Water |